On 12Apr2015 17:25, Pippo <adm2303.2...@gmail.com> wrote:
>> > > constraint = re.compile(r'(#C\[\w*\]')) >> > > result = constraint.search(content[j],re.MULTILINE) >> > > text.append(result) >> > > print(text)
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>> result is empty! Although it should have a content.
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> I fixed the syntax error but the result shows: > [None] > [None, None]
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Note that "None" is not "empty", though in this case more or less means what you think.
You're getting None because the regexp fails to match.
Try printing each string you're trying to match using 'repr', i.e.: print(repr(content[j])) Do any look like they should match?print(repr(content[j])) gives me the following: [None] '#D{#C[Health] #P[Information] - \n'
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shouldn't it match "#C[Health]" in the first row?
It looks like it should, unless you have mangled your regular expression. You mentioned earlier that you fixed the syntax error, but you never actually recited the line after fixing it. Please cut/paste the _exact_ line where you compile the regexp as it is now. Superficially I would expect your regexp to work, but we would like to see it as it current is.
Also note that you can print the regexp's .pattern attribute: print(constraint.pattern) as a check that what was compiled is what you intended to compile.
If not, what is the best way to fetch these items in an array?
What you've got is ok. I would point out that as you're processing each line on its own you should not need "re.MULTILINE" in your .compile() call.
Cheers, Cameron Simpson <c...@zip.com.au> The upside of PHP is that it lets non-programmers create complex applications. The downside of PHP is that it lets non-programmers create complex applications. - Elliot Lee -- https://mail.python.org/mailman/listinfo/python-list
